sennseipt

The Legion 5 has Hybrid mode which will only use the dedicated GPU for more demanding tasks. Not sure but you can probably disable it completely if you need to. As for the battery, what @HelpfulTechWizard said is correct. Additionally, you can set your battery to only charge up to a certain charge, 80% for example, which will increase battery life.

You can go for a Ryzen 1700. Remember this one (as well as the 1600 non X) come with a very capable and good looking cooler (RGB in the case of the 1700). You don't need to change it unless you want to hit 3.9+GHz, which even then you'll need a more expensive cooler than the one you have been listing.

Let me guess: you're playing PUBG?

@ OP, what monitor do you have and what games/resolution/details is your build aimed at?

80£ for that CPU. Maybe 40£ for the board and 35£ for the ram. A Ryzen 1200 is significantly better than that i5 (especially when overclocked).

Are you seriously recommending that board with an 8700k and a 1700$ budget?

You won't get 50-60fps even at low settings with that cpu on PUBG, a friend of mine got a similar setup with low settings (high view distance) but with an i5 6500 and he drops below 40 multiple times, I would suggest at least a 1060 6GB and i5 8400. For the other games your build is more than enough, though.

If you can you should return the 6700K, along with the motherboard. That's 6gen stuff. If you're going for Intel, an i5-8400 is enough (and equal or better than a non overclocked 6700k), and a cheap Z370 board. No need for cooler because one is included, but if you want you can keep the cooler you bought and use that instead of returning it. Depending on what you paid for your stuff you might save over 100$ with these changes. You should buy an SSD (240-275GB) with this money, it will make your PC run much faster. If you already have an SSD, your build is very good and I would only improve the graphics card (1060 3GB → 1060 6GB → 1070).

SSD: Choose a cheaper one. Crucial MX300 275GB, Samsung 850 Evo 250GB, Toshiba TR200 240GB. This should save you around 50€. Graphics Card: You can also choose a cheaper model here and save about 50€, the one you chose seems like the price of a 1070Ti. Power Supply: I'm not sure about pricing there but something like a Seasonic M12II Evo 620W should also save you about 50€ and is also modular. RAM: Since RAM is pretty expensive and I don't know about prices in your country I can't say. But if there is a 2x8GB 3000MHz solution for less than ~220€ I would go for that. CPU Cooler: You can dismiss this if you go for an i5-8400, i7-8700 or Ryzen 1600. Case: Seems to be personal choice, a solid case aswell. OS: You don't need to buy Windows, at least at that price. Download it from the official website and either activate it with a key (which you can buy for much lower as some people have said) or don't activate it at all. Motherboard: Here you can buy the cheapest or near cheapest Z370 if you step away from the 8600k or a B350 if you go for a Ryzen 1600. CPU: Already discussed. All these changes should lower your costs significantly.

Check this video: The i5-8400 is comparable to Ryzen 1600 when overclocked a bit, so expect similar results (1080p high settings: average 220fps). This channel also has tests with Ryzen 1300X and Pentium G4560 with multiple graphics cards so you might want to take a look.

I would go with that build but get a Ryzen 1600 and GTX 1050ti. Seems like it should be more than enough for you for a "short term" solution and you future proof the PC so that your brother only needs to exchange the GPU to play more demanding games (when he gets a job :P). The 1300x has 4/4 cores/threads and the 1600 has 6/12, which is more than enough for games within the next few years. It's your choice though, but keep in mind new CPUs have just launched (AMD's Ryzen and 8th Gen Intel) while more powerful, cheaper GPUs should be out by the time you pass over your PC.

If you are willing to spend that much, remove the cooler and upgrade to a Ryzen 5 1600. Its cooler is capable for moderate overclocking (and since you have a windowed case there, the cooler also looks really good in case that was a concern). All other components make a very balanced build and with this future-proof CPU you should only require a Graphics card upgrade in the future if you wish to play demanding games/high settings. Also upgrading your RAM to 16GB in the future will be easy. I Guess you have to decide how much you want/can spend right now and if you will upgrade your computer later or eventually sell it and build a new one.

I dont understand how your post is relevant on a test setup with a 7700k that doesnt include csgo, when what I linked compares the GTX 1050 and 1050 ti in multiple games, among them csgo, and you can see the difference is clearly negligible. Sorry if I am missing something here. I'm not denying the 1050ti is a better card, I'm saying it's not worth it for this budget & goal.

Please refer to post title and kindly check benchmarks comparing both GPUs on this game. I'm a CSGO player and PC builder myself and having built multiple systems for various budgets specifically for CSGO I don't see the point in recommending a 1050ti over a 1050 at this budget for this game. Even a GT 1030 handles CSGO, but the 1050 outperforms it by much more than the 1050ti outperforms the 1050 and the upgrade costs less.

Pair the ryzen 1600 with an ASRock b350m pro4 and save some money. As long as you get decent RAM it will be comparable to the 8400 on games while being much better for workloads like Android studio with its 12 threads.